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Part #: MBP4960CT
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PART NUMBER: MBP4960CT BLOCK: 4 Bolt Main .060 over block two piece rear seal drivers side dipstick Square and parallel decked Align honed main bearing bore Cylinders honed on computer controlled machine to within .0002 straightness and roundness Cylinders are sonic tested for thickness ROTATING ASSEMBLY: New cast steel crankshaft internally balanced. Link to Flywheel New 4340 forged connecting rods 150,000 psi rod bolts Forged flat top Pistons Hastings moly rings Rotating assembly balanced to within 2 grams Melling high volume oil pump Flat tappet hydraulic lifter .544 intake lift, .547 exhaust lift 226 intake, 236 exhaust duration @ .050, 112 degrees lobe separation Heavy duty double roller (high perrformance) timing set CYLINDER HEADS: GM cast iron oval port cylinder heads with screw-in studs and guide plates 1.509 dia. Valve springs w/ damper. Hardened retainers & keepers. 2.25 swirl polished intake valves, 1.88 swirl polished exhaust valves Elgin hardened push rods Long slot rockers with postitive lock adjusting nuts A TON OF EXTRAS: Marine intake manifold 9.0 to 1 compression Chrome valve covers Cad plated marine oil pan Brass freeze plugs All engines are dyno tested on state-of-the-art DTS dyno and come with a complete dyno sheet CRITICAL SPECS: CAM: .544 Int / .547 Exh & 226 Int / 236 Exh duration @.050 - 112 degree lobe seperation HORSEPOWER: 460 @ 5300 RPM TORQUE: 515 @ 4300 RPM COMP. RATIO: 9.0 to 1 IGNITION TIMING: 34 Degree Total WARRANTY: 12 month unlimited hour warranty Link to Engine Installation Guide
12 month unlimited hour warranty
Link to Engine Installation Guide
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